Discussion

As many other Hyderabadi dishes, the addition of a sour agent is a key part of
dopiaza. Most often, raw mangoes are used; however, lemon juice or cranberries can be used
as well.

But my recipe doesn't include anything sour. Neither do any of the recipes I found on a
quick trawl round the web. The recipe in food.com is so similar to this
one that they must have a common ancestor. This one is
also quite similar. This one doubly disqualifies itself by requiring Mr Huda's Universal Curry
Paste: first the brand name is irrelevant, and secondly a “universal curry paste”
indicates a lack of care. There are many other recipes, but none that I have found want
anything sour in the sauce.